Hersh: How I’d play Saratoga on Thursday, July 31

It’s all about the weather, really. There’s a good chance of rain – possibly heavy – throughout the day, but the stuff is moving in waves and will be somewhat scattered, so timing and amounts are tough to predict. Five of the day’s 10 turf races – starting with race 3 – are carded for grass, and the card could wind up looking in reality nothing like it looks on paper.